John f



(No Model.)

- J. I. MAXSON.

GAS RBGULATOR.

Patented Oct. 9, 1883.

UNITED STATES JOHN n. nAxson, or PORTVILLE, NEW vonn.

PATENT FFECE GA'S-REGULATO R.

srnoxrrcarron frmng part of Letters Patent No. 286,526, dated October 9, 1883.

(No model.)

0all whom it may concern Be it known that I, JOHN F. MAXSON, a citizen of the United States of -America, residing at:l?ortville, in the county of Cattaraugus and State of New York, have invented certain new and useful Improvements in Gas- Itegulators;' and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relatos to fluidpresshre regu lators; and it consists of the improved construction, fully described hereinafter, whereby the gas-supply is positively regulated and controlled and anyincrease in the volume thereof speedily checked.

In the accompanying drawings, Figure 1 is a longitudinal section of a fluid-pressure regulator having my invention en 1bodied the rein; and Figs. 2 and 3 represent transverse seotions, respectivel y, of the conevalve and pistonrod.

A indieats the inlet-passage for supply ing the fl nid to a chamber, A, to which it connects hy a threaded connection, a, and forms at its end a shouldered valvescat, b, provided with an annular packing-ring, c, and adapted for the reception of a conical valve, B, secured to a rod or spindle, G, which plays through a stuflinghox, E, formed on the end c of the The ohamher A is holted on a chamher A. table or support, D, by bolis cl. Pipes F G convoy the fluid to the point of consumption,

the pipe G- being of smaller diameter than the pipes A er F, so as to deflect a large volume of the fiuid around through a pipe, H,

J is provided with suitable packing-rings, Z,

and an expanding coiled spring, L, encircles the said piston-rod, and bearsat its respective ends against the face of the pistonhead J and the inner face of the cylinderhead 7:.

, The piston-rod C is preferably made in two sections, o c connection being made by screw ing the threaded end 0 of the section c in a 5 threaded coupling socket, c", said socket c Carrying at its end a spring-dog, c adapted to enter a groove, c, formed in the face of the sectionc, for a purpose to be hereinafter explained. A hand-wheel, c is mounted on and 6 turns with said section c The valve B is conical in shape, as shown in the accompanying drawings.

The operation of the device is as follows: The amount of pressure at which it is desired the valve shall check the flow of fluid is regulated by revolving the section c by turning the handwheel c so that the coupling-socket c" is also revolved by means of the spring-dog 0", resting i n one of the grooves of the section c", the movement of the threaded couplingsocket eausing the threaded end c" of the rodsection c to advance or recede from said socket, reducing or increasing the contraction of the coiled spring L, and consequently the movement of the piston J. By having the spring-dog c bear inone of the grooves of the section c aforesaid, any movement of said coupling-socket independent of the sections o c is prevented, and the connections are not liable to become uuscrewed. By having the pipe G contracted or of smaller diametcr than the other pipes of the regulator, the flow of fluid is more or less thr0ttled as it reaches said pipe, and a large proportion of the same thereby deflected through the pipe H, to operate upon the piston i n the cylinder I when the pressure of said fiuid becomes excessix *e. As the piston is moved by the cxcessive pressure of the fiuid the cono-valve is forced on its 0 seat Z) c by means of its rod-connections with said piston, and reduces the supply of flui d from the passage A,

From the foregoing description it will be apparent that a pressure-regulator construct 5 ed in accordance with my invention is reli able and automatic in operation, simple "in construction, and effective for regulating the supply of fluid at different degrees of pressure.

I claim 1. The combination, in a fluid-pressure regulator, of a supply-pipe communicating with a chamber or larger pipe, a valve-seat therein, a conical valve playing within said Ch2tlll* ber, and attached to 2t rod carrying at its outer end a piston moving within a cylinder, the rod being composed of two sections, c c connected together by means of an interiorlythreztded Coupling-Socket, c having the springdog c adapted to engage with grooves formed in the section c substantially as and for the purpose set forth.

2. The combination, in EL fluid-pressure regulator, of the pipes A F G, commnnicating with the oha.m ber B, a valve-seat and conical valve therein, a piston-head, J, in a cy1inder, I, on a rod, C, the other end of which earries 

